Symbium and MLSListings Announce Partnership to Help Real Estate Agents with ADU Feasibility Tool

Tuesday October 12, 2021
Location: San Francisco, CA

Symbium Build Empowers MLSListings Subscribers to Deliver Added Value of ADUs to Their Clients


SAN FRANCISCO, California, October 12, 2021 – Symbium, the Complaw® company, and MLSListings, the premier Silicon Valley-based multiple listing service (MLS) serving the Bay Area and Northern California, are proud to announce a technology partnership that will feature Symbium Build as an ADU feasibility tool for real estate agents in the MLSListings subscriber base. This partnership introduces Symbium’s web-based application to help agents understand the feasibility of an ADU on any California property and will include a series of educational events tailored specifically for MLSListings subscribers, to arm agents with everything they need to know when it comes to educating clients about the added value of ADUs.

This partnership is the first of its kind and further solidifies MLSListings’ position as a leader in providing high value technology tools and educational content to its subscribers at a pivotal time when there is a housing shortage in California and planning departments are faced with unprecedented backlogs of permit applications and public inquiries. This housing and planning bottleneck has made it more critical for real estate agents to identify opportunities for engaging their buyers and sellers in new, creative ways and for MLS services to supply agents with web-based tools like Build so that they can better serve their clients. The partnership will shed light on Symbium’s expertise in its Complaw® technology, which is focused on the mechanization of laws and regulations, particularly in the planning and building space. 

MLSListings subscribers will learn, through use of Symbium Build and exclusive educational content, how they can add further value in any real estate transaction by identifying ADUs as sources of passive income on a property. Build will help agents to accomplish the following in a matter of clicks:

  • Visualize whether and where an ADU is allowed on any California property;
  • Explore different ADU designs and visualize how they will fit on a property; 
  • Connect with a design professional to help their clients get an ADU built;
  • Understand detailed ADU development standards, such as placement, size, height, and more for a property; and
  • Generate an ADU report for a listing presentation, disclosure packet, or to explain the potential ROI of a property to buyers or sellers of California real estate. 

“MLSListings is committed to providing our subscribers with a robust set of tools to help them achieve their business goals, and Symbium Build is a unique, one-stop ADU resource for them to add to their arsenal,” said Dave Wetzel, President and CEO of MLSListings. “We are pleased to offer Sybmium’s online ADU solution as another included benefit for MLSListings subscribers.”

MLSListings and Symbium plan to educate MLSListings subscribers of the essentials of ADUs in California at various online events, which is timely because ADUs are more popular now than ever before. If there’s any doubt in the rising interest in ADUs by real estate agents, that may have been squashed by the overwhelmingly positive turnout by agents during the last three California Association of Realtors REImagine Real Estate conferences, where agent attendance for the topic of ADUs has been at an all-time high. 

UC Berkeley’s Terner Center for Housing Innovation has identified that, in California, permitting and construction of ADUs has increased significantly in recent years, with triple the number of ADUs completed in 2019 than was completed the previous year - and those numbers continue to rise. Symbium Build will empower real estate agents to provide their clients with more accurate and consistent responses to ADU questions. This will lead to more satisfied and better-informed buyers and sellers and will positively impact agents in their service to ROI-sensitive clients or clients who would like age-in-place options for family members.

“It’s no wonder that our first partnership with an MLS is with MLSListings. The organization is based in Silicon Valley, where there is an unrestrained culture of innovation and where I also met my co-founders at Stanford. The organization has strong roots in tech innovation, which is embraced by the CEO, Dave Wetzel, and his incredible team,” said Leila Banijamali, Symbium CEO. “We’re motivated to tackle the housing crisis in California and we recognize that developing ADUs is just one path to get there. Innovations in housing happen because of these types of partnerships and we couldn’t be prouder of this announcement and the educational content that will follow for agents at MLSListings.”


About Symbium

The key to Symbium’s business is Complaw®, which is concerned with the representation of laws and regulations, such as planning codes, in a computable form. Symbium's applications make the zoning regulations that shape our cities and towns easy to navigate, empowering anyone to quickly assess what's possible on a piece of property or across a jurisdiction. Symbium was recently recognized as a 2021 GovTech 100 company, a 2021 American Bar Association Women of Legal Tech award recipient, and a 2020 Ivory Prize awardee for innovations in regulation and policy to achieve housing affordability. Symbium is headquartered in San Francisco, California. For more information, visit

About MLSListings

MLSListings Inc. is recognized as a premier multiple listing service in the nation. Based in the heart of Silicon Valley, MLSListings both understands the unique Bay Area-specific needs of its subscribers and possesses the required talent pool and agility to respond quickly to their local needs. MLSListings provides real estate professionals and consumers with accurate data that is updated every five minutes. Facilitating more than $70 billion in annual real estate activity, the MLSListings platform is the intersection of comprehensive real estate data and the transaction for the northern California marketplace. For more information, visit

Posted October 12, 2021

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